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2017 National Quarter Final chemistry Topic 18 Free

Biomolecules and biochemistry

Nicotine as the addictive compound in tobacco · Sub-topic 1

QUARTER FINAL STAGE 2017

Prempeh College

Aduman SHS

GSTS


QUESTION

Which compound in tobacco leaves causes addiction?

ANSWER: Nicotine

SOLUTION:

Nicotine acts on the brain/nervous system, driving strong addiction in tobacco users.


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PRACTICE QUESTIONS

1. QUESTION: Which compound in coffee is a stimulant?

ANSWER: Caffeine

SOLUTION:

Caffeine stimulates the central nervous system.


2. QUESTION: Which alkaloid from the bark of the cinchona tree is used against malaria?

ANSWER: Quinine

SOLUTION:

Quinine was the first effective antimalarial drug.


3. QUESTION: Which compound makes chilli peppers taste hot?

ANSWER: Capsaicin

SOLUTION:

Capsaicin activates heat-sensing receptors in the mouth.


4. QUESTION: Which stimulant compound is found in cocoa and chocolate?

ANSWER: Theobromine

SOLUTION:

Theobromine is a mild stimulant related to caffeine.


5. QUESTION: Which addictive compound is found in tobacco?

ANSWER: Nicotine

SOLUTION:

Nicotine is an alkaloid that acts on the nervous system.


6. QUESTION: Which compound from willow bark led to the development of aspirin?

ANSWER: Salicin (salicylic acid)

SOLUTION:

Aspirin is acetylsalicylic acid, made from salicylic acid.